PID+D2 Based Robust Current Controller Design of Ultra-Lift Luo Converter

Öz

The ultra-lift Luo converter is widely employed in various power electronics applications, including sustainable energy systems, electric vehicles, and energy storage, owing to its high voltage gain and efficient power conversion capability. In this study, a PID+D2 controller, obtained by augmenting the conventional PID controller with a second-order derivative (D2) component, is proposed for the output current control of the ultra-lift Luo converter. The performance of the proposed controller is evaluated through MATLAB/Simulink simulations and compared with that of the conventional PID controller. The comparison is carried out using settling time, percentage overshoot, disturbance rejection time, and the integral squared error as performance criteria. Simulation results demonstrate that the proposed PID+D2 controller tracks the reference current with a lower integral squared error and reduces the overshoot caused by current disturbances. These findings indicate that the proposed PID+D2 controller provides a reliable, effective, and practical solution for the output current control of the ultra-lift Luo converter.

Anahtar Kelimeler

• Ultra-lift Luo converter
• PID+D2
• Robust current control

Ultra-Yükselten Luo Dönüştürücü için PID+D2 Tabanlı Gürbüz Akım Denetleyici Tasarımı

Öz

Ultra-yükselten Luo dönüştürücü, yüksek verimli güç dönüşümü sağlayabildiği için sürdürülebilir enerji, elektrikli araçlar ve enerji depolama gibi çeşitli alanlarda kullanılmaktadır. Bu çalışmada, ultra-yükselten Luo dönüştürücünün çıkış akım denetimi için klasik PID denetleyiciye ikinci türev (D2) bileşeni eklenerek tasarlanan PID+D2 denetleyici önerilmektedir. Önerilen denetleyicinin başarımı, MATLAB/Simulink ortamında gerçekleştirilen benzetim çalışmalarıyla klasik PID denetleyici ile karşılaştırılmıştır. Karşılaştırmada yerleşme süresi, yüzde aşım, bozucu bastırma süresi ve integral karesel hata ölçütleri esas alınmıştır. Benzetim sonuçlarında, önerilen PID+D2 denetleyicinin referans akımını daha düşük integral karesel hata ile izlediği, akım kaynaklı bozucu etkisinde aşımı azalttığı görülmüştür. Elde edilen bulgular, önerilen PID+D2 denetleyicinin ultra-yükselten Luo dönüştürücünün çıkış akım denetimi için güvenilir ve uygulanabilir bir performans verdiğini göstermiştir.

Anahtar Kelimeler

• Ultra-yükselten Luo dönüştürücü
• PID+D2
• Gürbüz akım denetimi

Kaynakça

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